The monarchy in France was made strong by

henry IV
otto the great
phillip II
gregory

I'm sorry, but your statement is incorrect. The monarchy in France was not made strong by Gregory. The three individuals you mentioned - Henry IV, Otto the Great, and Philip II - did not play a significant role in strengthening the French monarchy either. The French monarchy was mainly strengthened by other kings such as Louis XIV, who centralized power and established absolute monarchy in France.

who is it though

The French monarchy was made strong by several key monarchs throughout history. One of the most notable figures is Louis XIV, also known as the Sun King. He reigned from 1643 to 1715 and is known for centralizing power, promoting a strong sense of royal authority, and establishing an absolutist regime. Louis XIV's reign is often considered the pinnacle of the French monarchy's strength.

pick one of the responses

If I have to pick one response, it would be Louis XIV.

pick henry IV, otto the great, phillip II, or gregory

If I have to pick one from the options you provided, it would be Philip II. Philip II, also known as Philip Augustus, was a significant monarch in France who greatly expanded the territories of the French Kingdom and implemented administrative and judicial reforms. Under his reign from 1180 to 1223, the French monarchy grew in power and influence.